{"id":580,"date":"2009-10-29T23:42:14","date_gmt":"2009-10-29T15:42:14","guid":{"rendered":"http:\/\/test999.eblhost.com\/blog\/?p=580"},"modified":"2009-10-31T13:22:20","modified_gmt":"2009-10-31T05:22:20","slug":"processing%ef%bc%9a%e7%ae%97%e6%b3%95%ef%bc%88%e4%b8%8a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/learn.travelchinawith.me\/?p=580","title":{"rendered":"Processing\uff1a\u7b97\u6cd5\uff08\u4e0a\uff09"},"content":{"rendered":"

1. \u56de\u987e\u4e4b\u524d\u7684\u5b66\u4e60\u3002\u4ee5Zoog\u4e3a\u4f8b\uff0c\u4ed6\u6559\u4f1a\u4e86\u6211\u4eec\u7528p5\u81ea\u5e26\u5e93\u7ed8\u5236\u57fa\u7840\u7684\u5f62\u72b6\u3002\u4ece\u90a3\u5f00\u59cb\uff0cZoog\u5347\u7ea7\u4e3a\u53ef\u4ee5\u4e0e\u9f20\u6807\u4e92\u52a8\uff0c\u901a\u8fc7\u53d8\u91cf\u81ea\u52a8\u79fb\u52a8\uff0c\u8fd0\u7528\u6761\u4ef6\u5f0f\u53d8\u5316\u65b9\u5411\uff0c\u7528\u5faa\u73af\u6269\u5c55\u4ed6\u7684\u8eab\u4f53\uff0c\u901a\u8fc7\u51fd\u6570\u7ec4\u7ec7\u4ed6\u7684\u4ee3\u7801\uff0c\u5c06\u4ed6\u7684\u6570\u636e\u548c\u529f\u80fd\u5c01\u88c5\u8fdb\u5165\u4e00\u4e2a\u5bf9\u8c61\uff0c\u6700\u540e\u901a\u8fc7\u6570\u7ec4\u590d\u5236\u4ed6\u81ea\u5df1\u3002\u5b66\u5230\u73b0\u5728\uff0c\u6211\u4eec\u5e94\u8be5\u505c\u4e0b\u6765\u4e00\u4f1a\uff0c\u60f3\u60f3\u6211\u4eec\u5b66\u5230\u7684\u7136\u540e\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u5f97\u5230\u6211\u4eec\u60f3\u8981\u7684\u7ed3\u679c\u3002\u6211\u4eec\u7684\u60f3\u6cd5\u662f\u4ec0\u4e48\uff1f\u53d8\u91cf\u3001\u6761\u4ef6\u5f0f\u3001\u5faa\u73af\u3001\u51fd\u6570\u3001\u5bf9\u8c61\u548c\u6570\u7ec4\uff0c\u5b83\u4eec\u80fd\u5982\u4f55\u6765\u5e2e\u52a9\u6211\u4eec\uff1f<\/p>\n

2. \u5728\u4e4b\u524d\u7684\u5b66\u4e60\u4e2d\uff0c\u6211\u4eec\u628a\u6240\u6709\u7cbe\u529b\u96c6\u4e2d\u5728\u201c\u4e00\u79cd\u7279\u6027\u201d\u7684\u7f16\u7a0b\u4f8b\u5b50\u4e0a\u3002Zoog\u53ef\u4ee5\u5e76\u4e14\u53ea\u4f1a\u6296\u52a8\u3002Zoog\u4e0d\u4f1a\u5ffd\u7136\u5f00\u59cb\u8df3\u8d77\u6765\uff0c\u5e76\u4e14Zoog\u901a\u5e38\u90fd\u662f\u4e00\u4e2a\u4eba\uff0c\u4ece\u4e0d\u5728\u8def\u4e0a\u4e0e\u5176\u4ed6\u5916\u661f\u751f\u7269\u4e92\u52a8\u3002\u5f53\u7136\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4e4b\u524d\u90a3\u4e9b\u4f8b\u5b50\u5e26\u5411\u66f4\u8fdc\uff0c\u4f46\u73b0\u5728\u66f4\u91cd\u8981\u7684\u662f\uff0c\u6293\u4f4f\u57fa\u672c\u7684\u673a\u80fd\uff08functionality\uff09\uff0c\u53ea\u6709\u8fd9\u6837\u6211\u4eec\u624d\u80fd\u771f\u6b63\u5b66\u5230\u57fa\u672c\u539f\u7406\uff08fundamentals\uff09\u3002<\/p>\n

3. \u672c\u8bfe\u6211\u4eec\u7684\u76ee\u6807\u4e3b\u8981\u662f\u793a\u8303\u4e00\u4e2a\u5927\u578b\u7684\u9879\u76ee\u5982\u4f55\u7531\u8bb8\u591a\u201c\u5355\u4e00\u7279\u6027\u201d\u7684\u5c0f\u7a0b\u5e8f\u6784\u6210\u3002\u4f60\uff0c\u7a0b\u5e8f\u5458\uff0c\u5e94\u5f53\u4ece\u5168\u5c40\u51fa\u53d1\uff0c\u4f46\u5fc5\u987b\u5b66\u4f1a\u5982\u4f55\u5c06\u5b83\u6253\u6563\u4e3a\u4e0d\u540c\u72ec\u7acb\u7684\u90e8\u5206\u4ee5\u6210\u529f\u6267\u884c\u4f60\u7684\u9884\u671f\u3002<\/p>\n

3.1. \u6211\u4eec\u7684\u6b65\u9aa4
\n 1\uff09<\/strong>\u60f3\u6cd5<\/strong>\u2014\u2014\u4ece\u4e00\u4e2a\u60f3\u6cd5\u5f00\u59cb\u3002
\n 2\uff09<\/strong>\u90e8\u5206<\/strong>\u2014\u2014\u5c06\u8fd9\u4e2a\u60f3\u6cd5\u6253\u6563\u4e3a\u5c0f\u5757\u3002
\na. <\/strong>\u7b97\u6cd5\u4f2a\u7801<\/strong>\u2014\u2014\u4ee5\u4f2a\u7801\u7684\u5f62\u5f0f\u65e5\u51fa\u5404\u4e2a\u90e8\u5206\u7684\u7b97\u6cd5
\nb. <\/strong>\u7b97\u6cd5\u4ee3\u7801<\/strong>\u2014\u2014\u7528\u4ee3\u7801\u6267\u884c\u7b97\u6cd5\u3002
\n c. <\/strong>\u5bf9\u8c61<\/strong>\u2014\u2014\u5c06\u4e0e\u8fd9\u4e2a\u7b97\u6cd5\u6709\u5173\u7684\u6570\u636e\u548c\u529f\u80fd\u5efa\u5165\u4e00\u4e2a\u7c7b\u3002
\n 3\uff09<\/strong>\u6574\u5408<\/strong>\u2014\u2014\u5c06\u7b2c\u4e8c\u6b65\u5f97\u5230\u7684\u6240\u6709\u7c7b\u6574\u5408\u4e3a\u4e00\u4e2a\u66f4\u5927\u7684\u7b97\u6cd5\u3002<\/p>\n

4. \u4e00\u4e2a\u7b97\u6cd5\u5c31\u662f\u4e00\u4e2a\u89e3\u51b3\u95ee\u9898\u7684\u7a0b\u5e8f\u6216\u516c\u5f0f\u3002\u5728\u8ba1\u7b97\u673a\u7f16\u7a0b\u4e2d\uff0c\u4e00\u4e2a\u7b97\u6cd5\u5c31\u662f\u8981\u6c42\u6267\u884c\u4e00\u9879\u4efb\u52a1\u7684\u6b65\u9aa4\u3002\u6211\u4eec\u4e4b\u524d\u6240\u6709\u7684\u4f8b\u5b50\u90fd\u5305\u62ec\u4e00\u4e2a\u7b97\u6cd5\u3002<\/p>\n

5. \u901a\u5e38\u610f\u4e49\u4e0a\uff0c\u7f16\u7a0b\u88ab\u8ba4\u4e3a\u6309\u4ee5\u4e0b\u7684\u7a0b\u5e8f\u8fd0\u4f5c\uff1a1\uff09\u53d1\u5c55\u4e00\u4e2a\u60f3\u6cd5\uff0c2\uff09\u8bbe\u8ba1\u51fa\u4e00\u5957\u5b9e\u73b0\u8fd9\u4e2a\u60f3\u6cd5\u7684\u7b97\u6cd5\uff0c3\uff09\u5199\u51fa\u5b9e\u73b0\u90a3\u4e2a\u7b97\u6cd5\u7684\u4ee3\u7801\u3002\u518d\u7ec6\u5206\u7684\u8bdd\uff0c\u7f16\u7a0b\u7684\u7a0b\u5e8f\u5c31\u662f\uff1a1\uff09\u53d1\u5c55\u4e00\u4e2a\u60f3\u6cd5\uff0c2\uff09\u5c06\u90a3\u4e2a\u60f3\u6cd5\u5206\u89e3\u4e3a\u591a\u4e2a\u66f4\u5c0f\u7684\u53ef\u7ba1\u7406\u7684\u90e8\u5206\uff0c3\uff09\u4e3a\u6bcf\u4e2a\u90e8\u5206\u8bbe\u8ba1\u51fa\u7b97\u6cd5\uff0c4\uff09\u4e3a\u6bcf\u4e2a\u90e8\u5206\u5199\u4ee3\u7801\uff0c5\uff09\u4e3a\u6240\u6709\u90e8\u5206\u4e00\u540c\u8bbe\u8ba1\u51fa\u7b97\u6cd5\uff0c6\uff09\u6574\u5408\u5404\u90e8\u5206\u7684\u4ee3\u7801\u3002<\/p>\n

<\/p>\n

6. \u8fd9\u91cc\u6211\u4eec\u8981\u505a\u4e00\u4e2a\u96e8\u6ef4\u6355\u6349\u6e38\u620f\uff0c\u89c4\u5219\u5f88\u7b80\u5355\uff08\u4f46\u5236\u4f5c\u5f88\u9ebb\u70e6\u3002\u3002\uff09\uff1a\u96e8\u6ef4\u4ee5\u968f\u673a\u4f4d\u7f6e\u548c\u901f\u5ea6\u4ece\u4e0a\u5f80\u4e0b\u4f4e\u843d\uff0c\u6211\u4eec\u8981\u505a\u7684\u5c31\u662f\u7528\u9f20\u6807\u63a5\u4f4f\u5b83\u4eec\u800c\u4e0d\u8ba9\u4ed6\u4eec\u6389\u5730\u4e0a\u3002<\/p>\n

6.1. ok\uff0c\u4ee5\u4e0a\u5e9f\u8bdd\u90a3\u4e48\u591a\u5c31\u662f\u4e3a\u4e86\u8ba9\u4f60\u5b66\u4f1a\u4e00\u79cd\u601d\u7ef4\uff0c\u5b66\u4f1a\u5c06\u4e00\u4e2a\u5927\u5bb6\u4f19\u6253\u6563\u4e3a\u4e00\u4e2a\u4e2a\u5c0f\u5757\uff0c\u7136\u540e\u5404\u4e2a\u51fb\u7834\u3002\u9996\u5148\uff0c\u6211\u4eec\u5f97\u60f3\u60f3\u5236\u4f5c\u8fd9\u4e2a\u6e38\u620f\u9700\u8981\u7528\u5230\u7684\u5143\u7d20\uff1a\u96e8\u6ef4\u548c\u5bb9\u5668\u3002\u5176\u6b21\uff0c\u6211\u4eec\u5e94\u5f53\u60f3\u60f3\u5b83\u4eec\u7684\u884c\u4e3a\u3002\u6bd4\u5982\u8bf4\uff0c\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u65f6\u95f4\u673a\u5236\u8ba9\u96e8\u6ef4\u968f\u673a\u843d\u4e0b\u3002\u6211\u4eec\u540c\u65f6\u9700\u8981\u51b3\u5b9a\u600e\u6837\u51b3\u5b9a\u96e8\u6ef4\u88ab\u201c\u6355\u6349\u201d\u5230\u4e86\u3002\u8ba9\u6211\u4eec\u6574\u7406\u5f97\u66f4\u89c4\u8303\u4e00\u4e9b\uff1a
\n1\uff09\u5f00\u53d1\u4e00\u4e2a\u7528\u9f20\u6807\u63a7\u5236\u5706\u5f62\u7684\u7a0b\u5e8f\u3002\u8fd9\u4fbf\u662f\u4f60\u76db\u96e8\u7684\u5bb9\u5668\u3002
\n2\uff09\u5199\u4e00\u4e2a\u6d4b\u8bd5\u4e24\u4e2a\u5706\u662f\u5426\u76f8\u4ea4\u7684\u7a0b\u5e8f\u3002\u8fd9\u7528\u6765\u51b3\u5b9a\u96e8\u6ef4\u662f\u5426\u88ab\u5bb9\u5668\u6355\u6349\u5230\u4e86\u3002
\n3\uff09\u5199\u4e00\u4e2a\u6bcfN\u79d2\u6267\u884c\u4e00\u4e2a\u51fd\u6570\u7684\u65f6\u95f4\u7a0b\u5e8f\u3002
\n4\uff09\u5199\u4e00\u4e2a\u5706\u5f62\u4ece\u4e0a\u5f80\u4e0b\u6389\u7684\u7a0b\u5e8f\u3002\u8fd9\u4e9b\u5c06\u662f\u96e8\u6ef4\u3002<\/p>\n

6.2. \u4e0b\u8fb9\u7684\u5b66\u4e60\u6211\u4eec\u5c06\u4ee5\u4e0a\u8fb93.1\u76842\uff09\u7684\u6b65\u9aa4\u5c06\u4e0d\u540c\u7684\u90e8\u5206\u5404\u4e2a\u6253\u7834\u3002<\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

\"catcher\"<\/a>
catcher<\/figcaption><\/figure>\n

6.2.1. \u505a\u5bb9\u5668<\/strong>
\n\u9996\u5148\u5f97\u5230\u4f2a\u7801\uff1a
\n\u25ce \u64e6\u9664\u80cc\u666f\u3002
\n\u25ce \u5728\u9f20\u6807\u4f4d\u7f6e\u7ed8\u5236\u4e00\u4e2a\u5706\u5f62\u3002<\/p>\n

\u5c06\u4e4b\u53d8\u6210\u4ee3\u7801\u5e76\u4e0d\u56f0\u96be\uff1a
\n void setup() {
\nsize(400,400);
\nsmooth();
\n} <\/span><\/em><\/p>\n

void draw() {
\nbackground(255);
\nstroke(0);
\nfill(175);
\nellipse(mouseX,mouseY,64,64);
\n}<\/span><\/em><\/p>\n

\u8fd9\u662f\u5f88\u597d\u7684\u4e00\u6b65\uff0c\u4f46\u6211\u4eec\u8fd8\u6ca1\u5168\u90e8\u5b8c\u6210\u3002\u6211\u4eec\u8981\u5c06\u5bb9\u5668\u4f5c\u4e3a\u4e00\u4e2a\u5bf9\u8c61\uff0c\u7136\u540e\u6700\u540e\u88ab\u5927\u7684\u7a0b\u5e8f\u5f88\u597d\u7684\u8c03\u7528\uff0c\u56e0\u6b64\u6211\u4eec\u7684\u4f2a\u7801\u5e94\u8be5\u6539\u4e3a\uff1a
\n Setup\uff1a<\/strong>
\n\u25ce \u521d\u59cb\u5316\u5bb9\u5668\u5bf9\u8c61\u3002
\n Draw\uff1a<\/strong>
\n\u25ce \u64e6\u9664\u80cc\u666f
\n\u25ce \u8bbe\u7f6e\u5bb9\u5668\u4f4d\u7f6e\u4e3a\u9f20\u6807\u4f4d\u7f6e
\n\u25ce \u663e\u793a\u5bb9\u5668<\/p>\n

\u8fd9\u6837\u7684\u8bdd\uff1a
\n Catcher catcher; <\/span><\/em><\/p>\n

void setup() {
\nsize(400,400);
\ncatcher = new Catcher(32);
\nsmooth();
\n} <\/span><\/em><\/p>\n

void draw()
\n{
\nbackground(255);
\ncatcher.setLocation(mouseX,mouseY);
\ncatcher.display();
\n}<\/span><\/em>
\n\u7136\u540eCatcher\u7c7b\u672c\u8eab\u4e5f\u5f88\u7b80\u5355\uff0c\u4f4d\u7f6e\u548c\u5927\u5c0f\u4e24\u4e2a\u53d8\u91cf\uff0c\u4e24\u4e2a\u51fd\u6570\uff1a\u4e00\u4e2a\u8bbe\u7f6e\u4f4d\u7f6e\u4e00\u4e2a\u663e\u793a\u3002
\n class Catcher{
\nfloat r; \/\/ \u534a\u5f84 <\/span><\/em><\/p>\n

float x,y; \/\/ \u4f4d\u7f6e <\/span><\/em><\/p>\n

Catcher(float tempR)
\n{
\nr = tempR;
\nx = 0;
\ny = 0;
\n} <\/span><\/em><\/p>\n

void setLocation(float tempX, float tempY) {
\nx = tempX;
\ny = tempY;
\n}
\nvoid display() {
\nstroke(0);
\nfill(175);
\nellipse(x,y,r*2,r*2);
\n}
\n}<\/span><\/em><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

<\/strong><\/p>\n

\"\u76f8\u4ea4\u53d8\u8272\"<\/a>
\u76f8\u4ea4\u53d8\u8272<\/figcaption><\/figure>\n

6.2.2. \u76f8\u4ea4<\/strong>
\n\u662f\u7684\uff0c\u6211\u6682\u65f6\u4e5f\u4e0d\u77e5\u9053\u8be5\u600e\u4e48\u505a\uff0cDaniel\u8bf4\u6211\u4eec\u4ece\u4e24\u4e2a\u8df3\u52a8\u7684\u7403\u90a3\u4e2a\u7c7b\u5f00\u59cb\u5427\uff08\u8fd8\u8bb0\u5f97\u4ee5\u524d\u90a3\u4e2a\u4f8b\u5b50\u5417\uff1f\uff09\uff0cwell\uff0c\u90a3\u597d\u5427\u3002\u3002<\/p>\n

Setup\uff1a<\/strong>
\n\u25ce \u521b\u5efa\u4e24\u4e2a\u7403\u5bf9\u8c61
\n Draw\uff1a<\/strong>
\n\u25ce \u79fb\u52a8\u7403
\n\u25ce \u5982\u679c\u74031\u548c\u74032\u76f8\u4ea4\uff0c\u5219\u5c06\u5b83\u4eec\u663e\u793a\u4e3a\u767d\u8272\u3002\u9664\u6b64\u4ee5\u5916\uff0c\u4fdd\u6301\u5b83\u4eec\u7684\u989c\u8272\u4e3a\u7070\u8272
\n\u25ce \u663e\u793a\u7403<\/p>\n

\u5982\u679c\u4e0d\u9700\u8981\u8003\u8651\u76f8\u4ea4\u7684\u95ee\u9898\uff0c\u6211\u4eec\u9996\u5148\u6765\u505a\u7b80\u5355\u7684\u8df3\u52a8\u7684\u7403\u7c7b\u3002
\n \u6570\u636e\uff1a<\/strong>
\n\u25ce X\u548cY\u8f74\u7684\u4f4d\u7f6e
\n\u25ce \u534a\u5f84
\n\u25ce X\u548cY\u8f74\u7684\u79fb\u52a8\u901f\u5ea6<\/p>\n

\u51fd\u6570\uff1a<\/strong>
\n\u25ce \u6784\u9020\u5668
\n\uff0d\u57fa\u4e8e\u5f15\u6570\u8bbe\u7f6e\u534a\u5f84
\n\uff0d\u9009\u53d6\u968f\u673a\u4f4d\u7f6e
\n\uff0d\u9009\u53d6\u968f\u673a\u901f\u5ea6
\n\u25ce \u79fb\u52a8
\n\uff0d\u5728X\u8f74\u65b9\u5411\u7528\u901f\u5ea6\u7684\u503c\u79fb\u52a8
\n\uff0d\u5728Y\u8f74\u65b9\u5411\u7528\u901f\u5ea6\u7684\u503c\u79fb\u52a8
\n\uff0d\u5982\u679c\u7403\u78b0\u5230\u4efb\u4e00\u8fb9\u7f18\uff0c\u53cd\u5411
\n\u25ce \u663e\u793a
\n\uff0d\u5728X\u548cY\u8f74\u7684\u4f4d\u7f6e\u7ed8\u5236\u7403<\/p>\n

\u5c06\u4ee5\u4e0a\u5199\u4e3a\u4ee3\u7801;
\n class Ball {<\/span><\/em><\/p>\n

float r; \/\/ radius
\nfloat x,y; \/\/ location
\nfloat xspeed,yspeed; \/\/ speed<\/span><\/em><\/p>\n

\/\/ Constructor
\nBall(float tempR) {
\nr = tempR;
\nx = random(width);
\ny = random(height);
\nxspeed = random( – 5,5);
\nyspeed = random( – 5,5);
\n}<\/span><\/em><\/p>\n

void move() {
\nx += xspeed; \/\/ Increment x
\ny += yspeed; \/\/ Increment y<\/span><\/em><\/p>\n

\/\/ Check horizontal edges
\nif (x > width || x < 0) { xspeed *= – 1; } \/\/Check vertical edges if (y > height || y < 0) {
\nyspeed *= – 1;
\n}
\n}<\/span><\/em><\/p>\n

\/\/ Draw the ball
\nvoid display() {
\nstroke(0);
\nfill(0,50);
\nellipse(x,y,r*2,r*2);
\n}
\n}<\/span><\/em><\/p>\n

\u867d\u7136\u6700\u540e\u6211\u4eec\u9700\u8981\u7528\u4e00\u4e2a\u6570\u7ec4\u6765\u4ea7\u751f\u4e00\u5806\u96e8\u6ef4\uff0c\u4f46\u73b0\u5728\u6211\u4eec\u4ec5\u4ec5\u9700\u8981\u4e24\u4e2a\u7403\uff0c\u4f60\u77e5\u9053\uff0c\u8fd9\u5e76\u4e0d\u96be\uff1a
\n \/\/ \u4e8c\u7403\u53d8\u91cf
\nBall ball1;
\nBall ball2;<\/span><\/em><\/p>\n

void setup() {
\nsize(400,400);
\nsmooth();<\/span><\/em><\/p>\n

\/\/ Initialize balls
\nball1 = new Ball(64);
\nball2 = new Ball(32);
\n}<\/span><\/em><\/p>\n

void draw() {
\nbackground(255);<\/span><\/em><\/p>\n

\/\/ Move and display balls
\nball1.move();
\nball2.move();
\nball1.display();
\nball2.display();
\n}<\/span><\/em><\/p>\n

\u90a3\u4e48\u5982\u4f55\u5224\u5b9a\u4e24\u4e2a\u5706\u662f\u5426\u76f8\u4ea4\u4e86\u5462\uff1f\u54e6\uff0cDaniel\u518d\u6b21\u63d0\u9192\u4e86\u6211\u4eec\uff0c\u5982\u679c\u4e24\u4e2a\u5706\u5fc3\u4e4b\u95f4\u7684\u8ddd\u79bb\u5927\u4e8e\u4e24\u4e2a\u534a\u5f84\u4e4b\u548c\uff0c\u5219\u4e8c\u8005\u6ca1\u6709\u76f8\u4ea4\uff1b\u53cd\u4e4b\uff0c\u5219\u76f8\u4ea4\u3002\u60f3\u5230\u8fd9\u4e00\u6b65\uff0c\u90a3\u4e48\u6211\u4eec\u7684\u5de5\u4f5c\u5c31\u662f\u6309\u4e0a\u8ff0\u9648\u8ff0\u5199\u4e00\u4e2a\u8fd4\u56de\u771f\u6216\u5047\u7684\u51fd\u6570\u5373\u53ef\u3002\u522b\u5fd8\u4e86\u6211\u4eec\u4e4b\u524d\u8bf4\u8fc7\uff0c\u8fd0\u7528dist()\u51fd\u6570\u53ef\u4ee5\u8ba1\u7b97\u51fa\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\u3002<\/p>\n

\"pr10-2\"<\/a>
\u5224\u5b9a\u662f\u5426\u76f8\u4ea4<\/figcaption><\/figure>\n

\/\/ \u4e00\u4e2a\u57fa\u4e8e\u4e24\u70b9\u662f\u5426\u76f8\u4ea4\u8fd4\u56de\u771f\u6216\u5047\u503c\u7684\u51fd\u6570
\nboolean intersect(float x1, float y1, float x2, float y2, float r1, float r2)
\n{
\nfloat distance = dist(x1,y2,x2,y2); \/\/ \u8ba1\u7b97\u4e24\u4e2a\u5706\u5fc3\u7684\u8ddd\u79bb
\nif (distance < r1 + r2) { \/\/ \u6bd4\u8f83\u8ddd\u79bb\u4e0e\u4e24\u4e2a\u534a\u5f84\u4e4b\u548c
\nreturn true;
\n} else {
\nreturn false;
\n}
\n} <\/span><\/em><\/p>\n

\u73b0\u5728\uff0c\u51fd\u6570\u5df2\u7ecf\u5b8c\u6210\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u74031\u548c\u74032\u7684\u6570\u636e\u6765\u6d4b\u8bd5\u5b83\u4e86\uff1a
\n boolean intersecting = intersect (ball1.x,ball1.y,ball2.x,ball2.y,ball1.r,ball2.r);
\nif (intersecting) {
\nprintln( “The circles are intersecting!
\n“);
\n}<\/span><\/em><\/p>\n

\u4ee5\u4e0a\u4ee3\u7801\u591a\u591a\u5c11\u5c11\u6709\u70b9\u5355\u8c03\uff0c\u66f4\u8fdb\u4e00\u6b65\u5c06\u4e4b\u4e0eball\u7c7b\u7ed3\u5408\uff0c\u8ba9\u6211\u4eec\u9996\u5148\u770b\u770b\u5b8c\u6574\u7684\u7a0b\u5e8f\uff1a
\n \/\/ \u4e8c\u7403\u53d8\u91cf
\nBall ball1;
\nBall ball2; <\/em><\/span><\/p>\n

void setup() {
\nsize(400,400);
\nframeRate(30);
\nsmooth();
\n\/\/ \u521d\u59cb\u5316\u7403
\nball1 = new Ball(64);
\nball2 = new Ball(32);
\n} <\/em><\/span><\/p>\n

void draw() {
\nbackground(0);
\n\/\/ \u79fb\u52a8\u5e76\u663e\u793a\u7403
\nball1.move();
\nball2.move();
\nball1.display();
\nball2.display();
\nboolean intersecting = intersect(ball1.x,ball1.y,ball2.x,ball2.y,ball1.r,ball2.r);
\nif (intersecting)
\n{
\nprintln(
\n\u201cThe circles are intersecting!
\n\u201d);
\n}
\n} <\/em><\/span><\/p>\n

\/\/ \u4e00\u4e2a\u57fa\u4e8e\u4e8c\u7403\u662f\u5426\u76f8\u4ea4\u800c\u8fd4\u56de\u771f\u6216\u5047\u503c\u7684\u51fd\u6570
\n\/\/ \u5982\u679c\u8ddd\u79bb\u5c0f\u4e8e\u4e8c\u8005\u534a\u5f84\u4e4b\u548c\uff0c\u5219\u8bf4\u660e\u4e24\u8005\u63a5\u89e6\u4e86<\/em><\/span><\/p>\n

boolean intersect(float x1, float y1, float x2, float y2, float r1, float r2)
\n{
\nfloat distance = dist(x1,y1
\n,x2,y2); \/\/ \u8ba1\u7b97\u8ddd\u79bb
\nif (distance < r1 + r2) { \/\/ \u6bd4\u8f83\u8ddd\u79bb\u4e0er1 + r2
\nreturn true;
\n} else{
\nreturn false;
\n}
\n} <\/em><\/span><\/p>\n

\u56e0\u4e3a\u6211\u4eec\u8981\u7528\u57fa\u4e8e\u5bf9\u8c61\u7684\u65b9\u5f0f\u505a\u8fd9\u73a9\u610f\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728ball\u7c7b\u4e4b\u5916\u518d\u6574\u4e2aintersect( )<\/span><\/em>\u51fd\u6570\u6765\u786e\u5b9a\u4e8c\u8005\u662f\u5426\u76f8\u4ea4\uff0c\u53ef\u4ee5\u8fd9\u4e48\u5199\u4e3aball1.intersect (ball2); <\/span><\/em><\/p>\n

void draw() {
\nbackground(0);
\n\/\/ \u79fb\u52a8\u5e76\u663e\u793a\u7403
\nball1.move();
\nball2.move();
\nball1.display();
\nball2.display(); <\/span><\/em><\/p>\n

boolean intersecting = ball1.intersect(ball2);
\nif (intersecting) {
\nprintln( ” The circles are intersecting! ” );
\n}
\n} <\/span><\/em><\/p>\n

\u63a5\u4e0b\u6765\uff0c\u4e0b\u8fb9\u662fball\u7c7b\u5185\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u6ce8\u610f\u8fd9\u4e2a\u51fd\u6570\u961f\u81ea\u8eab\u4f4d\u7f6e\uff08x\u548cy\uff09\u548c\u5176\u4ed6\u7403\u7684\u4f4d\u7f6e\uff08b.x\u548cb.y\uff09\u7684\u4f7f\u7528\u3002
\n boolean intersect(Ball b) {
\nfloat distance = dist(x,y,b.x,b.y); \/\/ \u8ba1\u7b97\u8ddd\u79bb
\nif (distance < r + b.r) { \/\/ \u6bd4\u8f83\u8ddd\u79bb\u4e0e\u4e8c\u8005\u534a\u5f84\u4e4b\u548c
\nreturn true;
\n} else { return false;
\n}
\n}<\/span><\/em>
\n\u628a\u6240\u6709\u4e1c\u897f\u52a0\u4e00\u5757\uff0c\u89c1\u8fd9\u91cc<\/a>\u3002<\/p>\n

6.2.3\uff1a\u8ba1\u65f6\u5668<\/strong>
\n\u6211\u4eec\u7684\u4e0b\u4e00\u4e2a\u4efb\u52a1\u662f\u641e\u4e00\u4e2a\u6bcfN\u79d2\u6267\u884c\u4e00\u4e2a\u51fd\u6570\u7684\u8ba1\u65f6\u5668\u3002\u518d\u6b21\uff0c\u6211\u4eec\u5c06\u7ecf\u7531\u4e24\u6b65\u6765\u505a\u5230\uff1a\u7b2c\u4e00\uff0c\u76f4\u63a5\u4f7f\u7528\u7a0b\u5e8f\u7684\u4e3b\u9898\uff1b\u7b2c\u4e8c\uff0c\u5c06\u903b\u8f91\u653e\u5230\u4e00\u4e2a\u540d\u4e3aTimer\u7684\u7c7b\u4e2d\u3002Processing\u63d0\u4f9bhour( )<\/span><\/em>, second( )<\/span><\/em>, minute( )<\/span><\/em>, month( )<\/span><\/em>, day( )<\/span><\/em>, \u548c year( ) <\/span><\/em>\u7b49\u51fd\u6570\u6765\u5904\u7406\u65f6\u95f4\u3002\u548c\u6211\u4e00\u6837\uff0c\u4e5f\u8bb8\u4f60\u4f1a\u60f3\u8fd9\u91cc\u7528second()<\/span><\/em>\u6765\u51b3\u5b9a\u8fc7\u53bb\u4e86\u591a\u5c11\u65f6\u95f4\u4e00\u5b9a\u518d\u5408\u9002\u4e0d\u8fc7\uff0c\u7136\u800c\uff0c\u8fd9\u5e76\u4e0d\u5229\u4e8e\u6211\u4eec\u8ba1\u65f6\uff0c\u56e0\u4e3asecond()<\/span><\/em>\u6bcf\u5206\u949f\u90fd\u4f1a\u4ece60\u6eda\u52a8\u52300\u3002 \u4f5c\u4e3a\u5236\u4f5c\u8ba1\u65f6\u5668\u6765\u8bf4\uff0cmillis()<\/span><\/em>\u51fd\u6570\u662f\u6700\u597d\u7684\u9009\u62e9\u3002\u5b83\u4ee5\u5fae\u79d2\uff081\u5fae\u79d2\uff1d1\u79d2\/1000\uff09\u4e3a\u5355\u4f4d\uff0c\u8fd4\u56de\u4e00\u4e2asketch\u5f00\u59cb\u7684\u65f6\u95f4\u3002\u5b83\u6c38\u8fdc\u4e0d\u4f1a\u6eda\u56de0\uff0c\u6240\u4ee5\u5b83\u53cd\u6620\u7684\u6c38\u8fdc\u90fd\u662f\u8017\u65f6\u7684\u603b\u548c\u3002 \u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5982\u679c\u6211\u4eec\u8981\u57285\u79d2\u540e\u4f7f\u80cc\u666f\u53d8\u4e3a\u7ea2\u8272\uff0c\u5219\u8fd9\u4e48\u5199\u5373\u53ef\uff1a
\n if (millis() > 5000) {
\nbackground(255,0,0);
\n}<\/span><\/em>
\n\u518d\u590d\u6742\u4e00\u4e9b\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7a0b\u5e8f\u6269\u5145\u4e3a\uff1a\u6bcf5\u79d2\u7528\u4e00\u4e2a\u968f\u673a\u989c\u8272\u66f4\u6362\u80cc\u666f\u8272\u3002<\/p>\n

Setup\uff1a<\/strong>
\n\u25ce \u5728\u5f00\u59cb\u4e4b\u521d\u4fdd\u5b58\u65f6\u95f4\uff08\u6ce8\u610f\u8fd9\u5e94\u5f53\u59cb\u7ec8\u4e3a0\uff0c\u4f46\u5c06\u5176\u5b58\u5165\u4e00\u4e2a\u53d8\u91cf\u4f1a\u66f4\u6709\u7528\uff09\u3002\u79f0\u5176\u4e3a\u201csavedTime\u201d\u3002<\/p>\n

Draw\uff1a<\/strong>
\n\u25ce \u5c06\u8017\u65f6\u8ba1\u7b97\u4e3a\u5f53\u524d\u65f6\u95f4\u51cf\u53bbsavedTime\u3002\u5c06\u5dee\u503c\u4fdd\u5b58\u4e3a”passedTime”\u3002
\n\u25ce \u5982\u679cpassedTime\u8d85\u8fc75\u79d2\uff0c\u586b\u5145\u4e00\u4e2a\u968f\u673a\u80cc\u666f\u8272\u5e76savedTime\u91cd\u7f6e\u5230\u5f53\u524d\u65f6\u95f4\u3002\u8fd9\u4e2a\u6b65\u9aa4\u5c06\u91cd\u542f\u8ba1\u65f6\u5668\u3002<\/p>\n

\u5199\u6210\u4ee3\u7801\u5c31\u662f\uff1a
\n int savedTime;
\nint totalTime = 5000;<\/span><\/em><\/p>\n

void setup() {
\nsize(200,200);
\nbackground(0);
\nsavedTime = millis();
\n}<\/span><\/em><\/p>\n

void draw() {
\n\/\/ \u8ba1\u7b97\u8fc7\u53bb\u4e86\u591a\u957f\u65f6\u95f4
\nint passedTime = millis() – savedTime;
\n\/\/ 5\u79d2\u8fc7\u53bb\u4e86\u5417\uff1f
\nif (passedTime > totalTime) {
\nprintln( ” 5 seconds have passed! ” );
\nbackground(random(255)); \/\/ \u586b\u5165\u4e00\u4e2a\u65b0\u7684\u968f\u673a\u80cc\u666f\u8272
\nsavedTime = millis(); \/\/ \u4fdd\u5b58\u5f53\u524d\u65f6\u95f4\uff0c\u91cd\u542f\u8ba1\u65f6\u5668!
\n}
\n}<\/span><\/em><\/p>\n

\u597d\u4e86\uff0c\u73b0\u5728\u903b\u8f91\u90e8\u5206\u51fa\u6765\u4e86\uff0c\u6211\u4eec\u73b0\u5728\u5c31\u53ef\u4ee5\u5c06\u8ba1\u65f6\u5668\u79fb\u5165\u4e00\u4e2a\u7c7b\u4e86\u3002\u8ba9\u6211\u4eec\u60f3\u4e00\u4e0b\u8ba1\u65f6\u5668\u91cc\u8fb9\u7528\u5230\u7684\u6570\u636e\u3002\u4e00\u4e2a\u8ba1\u65f6\u5668\u5fc5\u987b\u77e5\u9053\u5b83\u5f00\u542f\u7684\u65f6\u95f4\uff08savedTime\uff09\u4ee5\u53ca\u5b83\u9700\u8981\u8fd0\u884c\u7684\u65f6\u95f4\uff08totalTime\uff09\u3002<\/p>\n

\u6570\u636e\uff1a<\/strong>
\n\u25ce savedTime
\n\u25ce totalTime<\/p>\n

\u8ba1\u65f6\u5668\u540c\u65f6\u5e94\u5f53\u5177\u5907\u5f00\u542f\u548c\u5173\u95ed\u7684\u80fd\u529b\u3002<\/p>\n

\u51fd\u6570\uff1a<\/strong>
\n\u25ce start()
\n\u25ce isFinished()\u2014\u2014\u8fd4\u56de\u771f\u6216\u5047<\/p>\n

\u628a\u4e4b\u524d\u90a3\u4e2a\u4f8b\u5b50\u7528\u4ee5\u4e0a\u7ed3\u6784\u505a\u51fa\u6765\uff1a
\n Timer timer;<\/em><\/span><\/p>\n

void setup() {
\nsize(200,200);
\nbackground(0);
\ntimer = new Timer(5000);
\ntimer.start();
\n}<\/em><\/span><\/p>\n

void draw() {
\nif (timer.isFinished()) {
\nbackground(random(255));
\ntimer.start();
\n}
\n}<\/em><\/span><\/p>\n

class Timer {<\/em><\/span><\/p>\n

int savedTime; \/\/ \u8ba1\u65f6\u5668\u4f55\u65f6\u5f00\u59cb
\nint totalTime; \/\/ \u8ba1\u65f6\u5668\u5e94\u5f53\u6301\u7eed\u591a\u4e45<\/em><\/span><\/p>\n

Timer(int tempTotalTime) {
\ntotalTime = tempTotalTime;
\n}<\/em><\/span><\/p>\n

\/\/ Starting the timer
\nvoid start() {
\n\/\/ \u5f53\u8ba1\u65f6\u5668\u5f00\u542f\uff0c\u5b83\u5c06\u5f53\u524d\u65f6\u95f4\u4ee5\u6beb\u79d2\u5b58\u50a8\u4e0b\u6765
\nsavedTime = millis();
\n}<\/em><\/span><\/p>\n

\/\/ \u5982\u679c5000\u6beb\u79d2\u8fc7\u53bb\uff0c\u51fd\u6570isFinished() \u8fd4\u56de\u771f
\n\/\/ The work of the timer is farmed out to this method.
\nboolean isFinished() {
\n\/\/ \u68c0\u67e5\u8fc7\u53bb\u4e86\u591a\u5c11\u65f6\u95f4
\nint passedTime = millis()- savedTime;
\nif (passedTime > totalTime) {
\nreturn true;
\n} else {
\nreturn false;
\n}
\n}
\n}<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

1. \u56de\u987e\u4e4b\u524d\u7684\u5b66\u4e60\u3002\u4ee5Zoog\u4e3a\u4f8b\uff0c\u4ed6\u6559\u4f1a\u4e86\u6211\u4eec\u7528p5\u81ea\u5e26\u5e93\u7ed8\u5236\u57fa\u7840\u7684\u5f62\u72b6\u3002\u4ece\u90a3\u5f00\u59cb\uff0cZoog\u5347\u7ea7\u4e3a\u53ef\u4ee5\u4e0e\u9f20\u6807\u4e92\u52a8\uff0c\u901a\u8fc7\u53d8\u91cf\u81ea\u52a8\u79fb\u52a8\uff0c\u8fd0\u7528\u6761\u4ef6\u5f0f\u53d8\u5316\u65b9\u5411\uff0c\u7528\u5faa\u73af\u6269\u5c55\u4ed6\u7684\u8eab\u4f53\uff0c\u901a\u8fc7\u51fd\u6570\u7ec4\u7ec7\u4ed6\u7684\u4ee3\u7801\uff0c\u5c06\u4ed6\u7684\u6570\u636e\u548c\u529f\u80fd\u5c01\u88c5\u8fdb\u5165\u4e00\u4e2a\u5bf9\u8c61\uff0c\u6700\u540e\u901a\u8fc7\u6570\u7ec4\u590d\u5236\u4ed6\u81ea\u5df1\u3002\u5b66\u5230\u73b0\u5728\uff0c\u6211\u4eec\u5e94\u8be5\u505c\u4e0b\u6765\u4e00\u4f1a\uff0c\u60f3\u60f3\u6211\u4eec\u5b66\u5230\u7684\u7136\u540e\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u5f97\u5230\u6211\u4eec\u60f3\u8981\u7684\u7ed3\u679c\u3002\u6211\u4eec\u7684\u60f3\u6cd5\u662f\u4ec0\u4e48\uff1f\u53d8\u91cf\u3001\u6761\u4ef6\u5f0f\u3001\u5faa\u73af\u3001\u51fd\u6570\u3001\u5bf9\u8c61\u548c\u6570\u7ec4\uff0c\u5b83\u4eec\u80fd\u5982\u4f55\u6765\u5e2e\u52a9\u6211\u4eec\uff1f 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